Abstract
Summary Pre‐harvest application of glyphosate in barley at 1·44 and 0·72 kg ha −1 was compared with post‐harvest application at 1·44 kg ha −1 at six sites in south‐east Scotland, three sprayed in 1980 and three in 1981. Both levels of pre‐harvest application gave consistent 95–99% control of A. repens compared with 0–76% control from post‐harvest application. Yields of crops grown in 1981 were significantly increased after all the 1980 pre‐harvest treatments and after one post‐harvest treatment. No significant depressions in grain germination were recorded from the lower rate of pre‐harvest application but one significant depression was recorded from the higher rate. Combine harvesting throughput at a given grain loss level was significantly improved by pre‐harvest application and moisture content of grain at harvest was significantly reduced by up to 2·5%. Wheeling losses from pre‐harvest spraying ranged from 1 to 5%. Crop yield increases in the year after spraying compensated for herbicide and application costs plus any yield losses through tractor wheelings.
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Claims 9
Claim · model-written summary
Pre-harvest glyphosate gave 95–99% control of A. repens in barley, compared with 0–76% control after post-harvest application.
- Taxon
- barley
Hordeum vulgaret0 - Treatment
- pre‐harvest application of glyphosatee0
- Interactor
- A. repens
Elymus repense1weed - Outcome
- control of A. repense1
- Direction
- higherinferrede1
- Value
- 95–99%e1
- Qualifier
- 0–76% control from post‐harvest applicatione1
- Comparator
- post‐harvest application at 1·44 kg ha −1e0
- Setting
- six sites in south‐east Scotlande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)

Verbatim
t0“in barley”
e0“Pre‐harvest application of glyphosate in barley at 1·44 and 0·72 kg ha −1 was compared with post‐harvest application at 1·44 kg ha −1 at six sites in south‐east Scotland, three sprayed in 1980 and three in 1981”
e1“Both levels of pre‐harvest application gave consistent 95–99% control of A. repens compared with 0–76% control from post‐harvest application”
Claim · model-written summary
Crop yields in 1981 were significantly increased after all the 1980 pre-harvest treatments.
- Taxon
- barley
Hordeum vulgaret0 - Treatment
- pre‐harvest treatmentse2
- Outcome
- Yields of crops grown in 1981e2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e2“Yields of crops grown in 1981 were significantly increased after all the 1980 pre‐harvest treatments and after one post‐harvest treatment”
Claim · model-written summary
Crop yields in 1981 were significantly increased after one post-harvest treatment in 1980.
- Taxon
- barley
Hordeum vulgaret0 - Treatment
- post‐harvest treatmente2
- Outcome
- Yields of crops grown in 1981e2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e2“Yields of crops grown in 1981 were significantly increased after all the 1980 pre‐harvest treatments and after one post‐harvest treatment”
Claim · model-written summary
The lower pre-harvest rate caused no significant depression in grain germination.
- Taxon
- barley
Hordeum vulgaret0 - Treatment
- lower rate of pre‐harvest applicatione3
- Outcome
- grain germinatione3
- Direction
- no_changeinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e3“No significant depressions in grain germination were recorded from the lower rate of pre‐harvest application but one significant depression was recorded from the higher rate”
Claim · model-written summary
The higher pre-harvest rate caused a significant depression in grain germination.
- Taxon
- barley
Hordeum vulgaret0 - Treatment
- higher ratee3
- Outcome
- grain germinatione3
- Direction
- decreaseinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e3“No significant depressions in grain germination were recorded from the lower rate of pre‐harvest application but one significant depression was recorded from the higher rate”
Claim · model-written summary
Pre-harvest application significantly improved combine harvesting throughput at a given grain loss level.
- Taxon
- barley
Hordeum vulgaret0 - Treatment
- pre‐harvest applicatione4
- Outcome
- Combine harvesting throughput at a given grain loss levele4
- Direction
- improvede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e4“Combine harvesting throughput at a given grain loss level was significantly improved by pre‐harvest application and moisture content of grain at harvest was significantly reduced by up to 2·5%”
Claim · model-written summary
Pre-harvest application significantly reduced grain moisture content at harvest by up to 2·5%.
- Taxon
- barley
Hordeum vulgaret0 - Treatment
- pre‐harvest applicatione4
- Outcome
- moisture content of grain at harveste4
- Direction
- reducede4
- Value
- up to 2·5%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e4“Combine harvesting throughput at a given grain loss level was significantly improved by pre‐harvest application and moisture content of grain at harvest was significantly reduced by up to 2·5%”
Claim · model-written summary
Wheeling losses from pre-harvest spraying ranged from 1 to 5%.
- Taxon
- barley
Hordeum vulgaret0 - Outcome
- Wheeling lossese5
- Value
- 1 to 5%e5
- Qualifier
- from pre‐harvest sprayinge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e5“Wheeling losses from pre‐harvest spraying ranged from 1 to 5%”
Claim · model-written summary
Crop yield increases in the year after spraying compensated for herbicide and application costs plus any yield losses from tractor wheelings.
- Taxon
- barley
Hordeum vulgaret0 - Outcome
- Crop yield increases in the year after sprayinge6
- Qualifier
- compensated for herbicide and application costs plus any yield losses through tractor wheelingse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“in barley”
e6“Crop yield increases in the year after spraying compensated for herbicide and application costs plus any yield losses through tractor wheelings”
The same questions in other papers
glyphosate · Elymus repens · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.